GB8502317D0 - Recorded data playback apparatus - Google Patents
Recorded data playback apparatusInfo
- Publication number
- GB8502317D0 GB8502317D0 GB858502317A GB8502317A GB8502317D0 GB 8502317 D0 GB8502317 D0 GB 8502317D0 GB 858502317 A GB858502317 A GB 858502317A GB 8502317 A GB8502317 A GB 8502317A GB 8502317 D0 GB8502317 D0 GB 8502317D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- recorded data
- playback apparatus
- data playback
- recorded
- playback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/10—Control of operating function, e.g. switching from recording to reproducing by sensing presence or absence of record in accessible stored position or on turntable
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984012144U JPS60123763U (en) | 1984-01-30 | 1984-01-30 | Recorded information reproducing device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8502317D0 true GB8502317D0 (en) | 1985-02-27 |
| GB2154361A GB2154361A (en) | 1985-09-04 |
| GB2154361B GB2154361B (en) | 1987-09-16 |
Family
ID=11797301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08502317A Expired GB2154361B (en) | 1984-01-30 | 1985-01-30 | Playback apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4680744A (en) |
| JP (1) | JPS60123763U (en) |
| DE (1) | DE3503117A1 (en) |
| GB (1) | GB2154361B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5166805A (en) * | 1985-06-18 | 1992-11-24 | Pioneer Electronic Corporation | Disk player with a blanking during fast scanning |
| US4951154A (en) * | 1987-01-28 | 1990-08-21 | Nec Corporation | Magneto-optic recording/reproducing apparatus |
| JPH0770173B2 (en) * | 1987-03-06 | 1995-07-31 | 松下電器産業株式会社 | Information recording / reproducing device |
| JPH0695426B2 (en) * | 1987-08-11 | 1994-11-24 | キヤノン株式会社 | Optical information recording / reproducing device |
| JPH0668845B2 (en) * | 1988-12-07 | 1994-08-31 | シャープ株式会社 | Optical disk device |
| JPH0352123A (en) * | 1989-07-19 | 1991-03-06 | Matsushita Electric Ind Co Ltd | Objective lens driver |
| JPH0731410Y2 (en) * | 1989-11-28 | 1995-07-19 | ティアツク株式会社 | Disk device |
| KR0135874B1 (en) * | 1992-02-28 | 1998-05-15 | 강진구 | Disk indentificatin method |
| US5696756A (en) * | 1995-04-14 | 1997-12-09 | Kabushiki Kaishia Toshiba | Optical disk having an evaluation pattern for evaluating the optical disk |
| US5999359A (en) * | 1997-05-09 | 1999-12-07 | Hewlett-Packard Co. | Head positioning system with photosensor |
| US5880456A (en) * | 1997-05-09 | 1999-03-09 | Hewlett-Packard Company | Circuit provides a normalized position signal for lateral photoeffect position sensor |
| JP3491191B2 (en) * | 1997-08-19 | 2004-01-26 | 富士通株式会社 | Tilt correction method for magneto-optical recording medium, apparatus used for implementing the method, and magneto-optical recording medium |
| JP4102618B2 (en) * | 2002-08-26 | 2008-06-18 | 富士通株式会社 | Disk storage |
| JP2008299912A (en) * | 2007-05-29 | 2008-12-11 | Hitachi Global Storage Technologies Netherlands Bv | Hard disk media with pattern for alignment, and alignment method |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL173696C (en) * | 1975-09-11 | 1984-02-16 | Philips Nv | OPTICAL RECORD PLAYER. |
| FR2330062A1 (en) * | 1975-10-31 | 1977-05-27 | Thomson Brandt | FOCUS SEARCH DEVICE AND OPTICAL READER INCLUDING SUCH A DEVICE |
| JPS5953612B2 (en) * | 1975-11-19 | 1984-12-26 | カブシキガイシヤ フジテレビジヨン | Kodenshikisai Seihouhou |
| NL7808638A (en) * | 1978-08-22 | 1980-02-26 | Philips Nv | DEVICE FOR READING A DISC REGISTRATION CARRIER. |
| JPS5538663A (en) * | 1978-09-09 | 1980-03-18 | Pioneer Video Corp | Detector for recording medium of optical information reader |
| US4340950A (en) * | 1979-10-12 | 1982-07-20 | Universal Pioneer Corporation | Video disc player |
| JPS57152570A (en) * | 1981-03-17 | 1982-09-20 | Pioneer Electronic Corp | Recording disk detecting device |
| JPS57179954A (en) * | 1981-04-27 | 1982-11-05 | Sony Corp | Optical type disc player |
| JPH0675334B2 (en) * | 1981-05-01 | 1994-09-21 | 株式会社東芝 | Optical disk device |
| JPS57195340A (en) * | 1981-05-27 | 1982-12-01 | Sony Corp | Optical disk player |
| JPS58102340A (en) * | 1981-12-11 | 1983-06-17 | Teac Co | Optical reproducing device |
| JPS58155527A (en) * | 1982-03-10 | 1983-09-16 | Hitachi Ltd | Focus pull-in circuit of optical disc player |
| JPS58212630A (en) * | 1982-06-04 | 1983-12-10 | Sony Corp | Reproducing device of optical disc |
| US4574372A (en) * | 1983-01-18 | 1986-03-04 | Staar S.A. | Locking device for record player apparatus |
| JPS59168835U (en) * | 1983-04-27 | 1984-11-12 | パイオニア株式会社 | Optical recording information reading device |
-
1984
- 1984-01-30 JP JP1984012144U patent/JPS60123763U/en active Granted
-
1985
- 1985-01-29 US US06/696,191 patent/US4680744A/en not_active Expired - Lifetime
- 1985-01-30 DE DE19853503117 patent/DE3503117A1/en active Granted
- 1985-01-30 GB GB08502317A patent/GB2154361B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3503117A1 (en) | 1985-08-08 |
| US4680744A (en) | 1987-07-14 |
| JPS60123763U (en) | 1985-08-21 |
| JPS642265Y2 (en) | 1989-01-19 |
| GB2154361A (en) | 1985-09-04 |
| GB2154361B (en) | 1987-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 20050129 |